74HC194 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 3 — 29 November 2016 7 of 17
NXP Semiconductors
74HC194
4-bit bidirectional universal shift register
10. Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); C
L
= 50 pF unless otherwise specified; for test circuit see Figure 12.
Symbol Parameter Conditions 25 C 40 C to +85 C 40 C to +125 C Unit
Min Typ Max Min Max Min Max
t
pd
propagation
delay
CP to Qn; see Figure 8
[1]
V
CC
= 2.0 V - 47 145 - 180 - 220 ns
V
CC
= 4.5 V - 17 29 - 36 - 44 ns
V
CC
= 5.0 V; C
L
=15pF - 14 - - - - - ns
V
CC
= 6.0 V - 14 25 - 31 - 38 ns
t
PHL
High to LOW
propagation
delay
MR to Qn; see Figure 9
V
CC
= 2.0 V - 39 140 - 175 - 210 ns
V
CC
= 4.5 V - 14 28 - 35 - 42 ns
V
CC
= 5.0 V; C
L
=15pF - 11 - - - - - ns
V
CC
= 6.0 V - 11 24 - 30 - 36 ns
t
t
transition
time
see Figure 8
[2]
V
CC
= 2.0 V - 19 75 - 95 - 110 ns
V
CC
=4.5V - 7 15 - 19 - 22 ns
V
CC
=6.0V - 6 13 - 16 - 19 ns
t
W
pulse width CP HIGH or LOW; see Figure 8
V
CC
= 2.0 V 80 17 - 100 - 120 - ns
V
CC
=4.5V 16 6 - 20 - 24 - ns
V
CC
=6.0V 14 5 - 17 - 20 - ns
t
W
pulse width MR pulse width LOW;
see Figure 9
V
CC
= 2.0 V 80 17 - 100 - 120 - ns
V
CC
=4.5V 16 6 - 20 - 24 - ns
V
CC
=6.0V 14 5 - 17 - 20 - ns
t
rec
recovery
time
MR to CP; see Figure 9
V
CC
=2.0V 60 17 - 75 - 90 - ns
V
CC
=4.5V 12 6 - 15 - 18 - ns
V
CC
=6.0V 10 5 - 13 - 15 - ns
